BION

Believe it or not

Abbrev. 

(spoken) it is true, even though it does not sound likely: 

a set phrase used before a statement that may seem shocking or untrue. Often used humorously or sarcastically.

Believe it or not, the longer route is actually quicker because there's less traffic.

I'm not a chef, believe it or not, so if you want something else for dinner, make it yourself!

A: "Did you really make the basketball team?" B: "Believe it or not, I did!"

An initialism of "believe it or not,"  Used especially in online communications, such as forums, social media, instant messaging, etc.

#BION